Dough-molding machine.



F. STRBICH.

DOUGH MOLDING MACHINE.

APPLICATION FILED 111.11.22, 1909.

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Iman hor' Patented Jan. 25, 1910.

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F. STREIGH.

DoUGH MOLDING MACHINE.

APPLICATION FILED JAN. 22,1909.

Patented Jan. 25, 1910.

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947,500. Patented Jan. 25, 1910.

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Witnesses inventor:

F. STRBICH.

DOUGH MOLDING MACHINE.

APPLICATION FILED JAN. 22,1909. 947,500, Patented Jan 25, 1910.

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UNITED PATENT @FFltllu FRANK STREICH, OF ST. LOUIS, MISSOURI, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

AMERICAN BAKERS MACHINERY COMPANY, OF ST. LOUIS. MISSOURI, A CORPORA- TION OF MISSOURI.

'.DOUGH-MOLDING MACHINE.

camco.

Specification of Letters Patent.

'.atented Jan. 25, 1.910.

To (lll 'whom 'it may concern:

Be it known that l, FRAM; Swinnen, a citizen ot' the llnited States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Dough-Molding Machines. ot which the tollow'ing` is a liull, clear, and exact description, such as will enable others skilled in the arl; to which it appertains to make and. use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevational view ot my improved machine. Fig.- 2 is a top plan view, showing the molding boards in their innermost position. Figs. 3 and l are diagrammatic views of the operating levers. Fig. 5 is a cross sectional View on line 5MB. Fig. 1. Fig. 6 is an enlarged view ot' one ol the molding boards. Figs. 7, S and 9 are diagrammatic views.

This invention relates to a new and nset'ul improvement in machines lor molding lumps oll dough ot various shapes and sizes into ellipsoidal form. and at the same time stretcliing the skin oit such lumpsover the top and sides and to a point at the bottom ol the completed loa'l". The finished loat is discharged onto a shelt' where it will settle into the form of a flattened sphere.

My present machine is very simple and cheap in construction, very easily operated and requires little power to run it. The dough to be treated first made and allowed to set after which it. is weighed and placed on one or both sides ot the center board. The lumps ot dough being treated are gradually ted through the machine, the machine kneading the dough. and workingl it after the manner oil manual manipulation, the skin on the top and sides ot the loal: be ing stretched and drawn to substantially a point at the bottom ot the loaf. The knead ing of the lumps ot dough as they pass through the machine prevents the :formation ot large gas bubbles in the center oit the loa'l, and by subjecting the lump to uniform treatmeut throughout, sinmltaneously with the skin-stretching operation, the texture oli the loaf is uniform.

The essential features o't` my present invention reside in the employment; ot a movable board standing perpendicular to the table, and inclined molding boards arranged on one or both sides ot the perpendicular board, combined with means t'or vibrating Vfrom each end olf the vertical molding board 7. 'lhis molding board T, or center board as it might be called, where two side molding boards are employed, operates in grooves in the table Q. See Fig. Said molding board 7 is provided with a groove in its upper edge tor receiving depending guide posts which are supported t'rom :trame castings 9 arranged at each end of the table 2. In this manner, the center board 'T is held rigidly in position, but is permitted to move longitudinally.

10 is a driving shaft on which are arranged fast and loose pulleys 11 and 1l". Shaft 10 carries a pinion 19. meshing with a gear 13 on the shaft 14, said shaft carrying a crank arm 15 at its upper end. To this crank arm are connected two links 16 and 17, link 1G being pivotally connected to one of the posts G and link 17 being slotted to receive the other post t). In this manner,

the revolutions of the e'ank arm 15 will vibrate the molding board 7. moving it longitudinally, the movement of the molding board at the time ot its reversal being relatively slow. as the crank pin passes the line ii o't` centers at this time.v The motion o'lf the molding board 'l' 1s most rapid when the crank arm .15 stands at right angles thereto,

as shown in Fig. S3 and this rapid movement is taken advantage of to place the molding board 7 quickly into position where it will operate upon the dough. .ln other words, atlhe time ol this quick movement, the molding board is heilig moved Yfrom right to left ,I

in Fig. 3 and is not in active relation to the dough being treated.

18 are the inclined side molding boards which operate upon the table Q, said 1nolding boards, like the molding board 7, being preferably made oit Wood 'faced with fabric no I 19, being provided with a metal wear strip 20 at its lower inner edge. The molding board 7 heretofore described is provided with fabric facing 7, its top and bottom edges having metal wear strips, for well understood reasons.

Each of the inclined molding boards 18 is provided with a post 21, at each end, said posts being bent inwardly at their upper ends to accommodate the table 9.. To the lower ends of the posts 21 of one molding board 18 are connected links 2Q, which links are in turn connected to the links 16 and 17; hence, when the links 16 and 17, which are fulcrumed on the posts 6, are oscillated, lateral movement is imparted to one of the molding boards 18. This lateral movement is timed with relation to the longitudinal movement of the board 7 so that as the board 7 is moving in one direction, starting slowly at rst, its speed increasing as the crank pin 15 reaches its position of greatest angularity and then slowly decreasing` until brought to a position of rest and its motion reversed. The reverse movement of the board 7 is the same, that is, starting slowly, its speed increasing to maximum and then dying down until arrested and reversed. The board 1,8 approaches the board 7 when the latter' is moving in one direction and recedes from said board 7 when the latter is moving in opposite direction. The differential speed imparted to board 7 is also imparted to the board 18, starting slowly and increasing to maximum speed and then dying down to a position of rest preceding reversal. The companion board 18 is operated by complernentary7 mechanism which imparts the opposite movement to said companion board. Of course, the companion board could be `operated direct from the directly7 connected board just above described, in which event it would alternate with the directly driven board in its approach to, and recession from the board 7. l. prefer, however, to have both boards 18 move in opposite directions in unison. for by so doing I provide for an equal pressure on both sides of the center board 7 in its operation.

The mechanism for operating the companion board from the directly connected board 18 consists of links 23 connected to levers Q4 pivotally mounted on the underside of the table 2 and to which are connected the links 25 pivotally mounted upon the posts Q1 of the companion board 18. The operation of this link and lever connection is obvious.

Referring to Figs. 3 and 7, it will be observed that the lumps of dough Z are relieved from pressure and are resting on the table 2. Vhile in this position, the crank arm 15 is moving from the position shown in Fig. 8 through the first quarter of its revolution; the board 7 is moving in the direetion of the arrow at its maximum speed, and the boards 18 have been arrested in their outermost position and are starting slowly inwardly. In the second quarter of its revolution, or in moving to the position shown in Figs. et and 8, the board 7 is moving to t-he right and the boards 18 have been caused to approach each other slowly, they gently picking up the dough and moving it toward the board 7 Tn the third quarter of its revolution, or in moving from the full line position to the dotted line position shown in Fig. 4L (Fig. 9 corresponding to the dotted line position), the dough is brought in contact with the board 7 and subjected to lateral pressure, as well as a rolling action, the lumps of dough being moved toward the right by the board 7. The boards 18 are not, in this third quarter movement, separated from the board 7, notwithstanding the fact that the pivotal connections of the links 22 to the links 16 and 1 7 are moved laterally in a direction tending to separate the boards 18,for the reason that the longitudinal movement of the board 7 carries said pivotal points of connection to the right, as indicated by the dotted line in Fig. 4 and consequently the boards 18 are not. only not separated, but are brought closer to the board 9 7 or from the position shown in Fig. 8 to the position shown in Fig. E). This slow approach of the boards 18v in this third quarter is relied upon to feed the lumps of dough toward the discharge end of the machine. In the fourth quarter, the board 7 starts back slowly, and the boards 18 start to separate slowly. However, as board 7 gains in speed in its leftward movement, the boards 18 also gain in speed in their outward movement, they relieving the lumps of dough of lateral pressure and dropping them upon the table 2, where they rest, as shown in Fig. 7, until the crank pin 15 starts on its first quarter after completing its full cycle.

By referring to Fig. 5, it will be observed that the balls of dough are rounded at the top and have their lower end tapered, the skin being drawn substantially to a point at the bottom of the ball. This ball of dough, shaped like a top is held upright until, of its own plasticity, it settles into a spherical form, in which the erstwhile pointed end is approximately in the center of the bottom face of the lump. To adjust the angle of incline of boards 18, I pivot them at their lower ends to the posts 21 as shown in Fig. 6, and arrange springs 18a under their upper ends, which springs tend to force the upper ends inwardly. A nut and bolt 18b are provided for adjustment, they holding the board against inward movement. The upper part of the board, however, can yield outwardly and in this way it is possible to exert greater pressure on the dough than the strength of the springs 18a; of conrse7 if the board 1S is solid against the post, it Will have reached its yielding .movement and exert a greater amount ot pressure on the dough than the springs exert.

l am aware that minor changes in the construction and arrangement of the several parts ot my device may be made and substituted :t'or those herein shown and described, without departing' Ytrom the nature and principle of my invention.

Having' thus described my invention, what l claim is: y' l Yl. In a dough molding machine, a vertical molding' board. a movable inclined molding board, and means for reciprocating the ver tical n'iolding' board longitudinally.

2. ln a dough molding machine. a vertical molding board, a movable inclined molding' board, and means for differentially reciprocating the vertical molding board longitudinally.

In a dough molding machine. a vertical molding board. an inclined molding board, means for differentially reciprocating the vertical molding board longitudinally, and means for diftl'ierentially vibrating the Vinclined molding board laterally.

4. ln a dough molding' machine, a vertical molding board, an inclined molding board. means ttor reciprocating' the vertical board longitudinally and means tor vibrating the inclined board laterally.

In a dough molding' machine, a longitudinallv reciprocating mold board. a laterally vibrating' mold hoard. and means 'tor moving said boards.

o. Vln a dough molding machine. a longitudinally reciprocating mold board. a laterallv vibrating mold board. a` drive shaft. and means tor converting the motion ot said drive shaft to reciprocate and vibrate said mold boards.

7. In a dough molding machine. a. longitudinally reciprocating mold board. and laterally vibrating mold board on each side thereof.

S. ln a dough l'nolding machine, a longitudinallv reciprocating mold board. laterally vibrating mold boards on each side thercotl and means for imparting ditlicrential movements to said boards.

9. In a dough molding machine. a reciprocating center board and movable inclined boards arranged on each side o't said center board.

l0. ln a dough molding n'iachine. a reciprocating center board and inclined molding boards on each side thereof. the angularity ot saidv molding boards heilig adjustable.

11. ln a dough molding` machine. a reciprocating center board and laterally vibrating molding boards on each side thtreoi'J said molding boards moving in opposite directions. A

l2. In a dough molding machine, a reciprocating vertical molding board and a pivotalty mounted inclined mold board mounted to reciprocate on cach side thereol.

'l-. ln a dough molding machine. a recip rocating vertical vibrat'ory mold board, a pivotally mounted inclined mold board. mounted to reciprocate on cach side thereof and` means lor adjusting thc tree edges ot said inclined mold boards.

11|-, Vln a dough molding machine. a vertical molding board. an inclined molding board. one otl sa id boards being yielding with respect to the other, means tor reciprocating the vertical board longitudinally. and means lor vibrating the inclined board laterally.

t5. ln a dough molding machine. a vertical molding board. an inclined molding board arranged at an angle to said vertical molding board. means for reciprocating the vertical board longitudinally, and means 'tor vibratimgl the inclined board laterally.

IG. l n a dough molding machine, a vertical molding beard, a yielding inclined molding board. means 'to` adjusting the angular relation of said boards to each other, means For reciprocating the vertical board longitudinalllvzand means 'tor vibrating the inclined board laterally.

t7. ln a dough molding machine. twomold boards. a link connected to one of said mold boards and to a crank pin. and a link connecting said tirst mentioned links and the other et' said mold boards.

'18. ln a dough molding machine. a longitudinally reciprocating mold board, a crank and links connecting said crank and mold board. one o't said links having a slot and pin connection with said mold board.

it). ln a dough molding machine. a longitudinally reciprocating mold board. laterally vibrating mold boards on each side thereof. a crank pin. a link connecting said crank pin to the first mentioned mold board. and lever mechanism connected to said links for driving the laterally movable mold boards.

Q0. lin a dough moldingmachine. a longitudinally reciprocating mold board, a table upon which the same is mounted. slotted brackets arranged below said table. and rollers in the ends ot' said mold board coperating with said brackets.

2t. ln a dough molding machine, a table. a longitudinally reciprocating mold board operating in said table. laterally movable mold boards operating upon said table. posts depending 'from all ot said mold boards, and mechanism arranged under the table and connected to said posts for' operating said mold boards.

29. In a dough molding machine. two mold boards one ot which is movable toward and from the other, and means for effecting a. l vibration, said means causing said mold 15 quick recession and a slow approach of said movable mold board With respect to its c0n1- panion.

23. In a dough molding machine, two mold boards movable at angles to each other, and means for imparting a quick movement to the mold board as it moves away from its companion, and a slow movement as Said mold board moves toward its companion.

Q4. In a dough molding machine, two mold boards, one of which is longitudinally reciprocated and the other of Which is laterallyl vibrated, and means for effecting said lateral board to Slowly vapproach the longitudinal movable mold board when the latter is moving` in one direction7 and to quickly recede from said longitudinally movable mold board when it is moving in the opposite direction.

In testimony whereof I hereunto affix my signature in the presence of two Witnesses, this lthday of January, 1909.

FRANK STREICH.

Witnesses:

LENORE CLARK, F. R. CORNWALL. 

